Rocking-chair



T. MOENKEDIGK.

Rocking-Chair. v No. 227,122. Patented May 4,1880.

He I

UNITED STATES PATENT OFFICE.

THEODORE MOENKEDICK, OF CINCINNATI, OHIO, ASSIGNOR OF ONE-HALF OF HISRIGHT TO CHARLES KAIPER, OF COVINGTON, KENTUCKY.

ROCKING-CHAIR.

SPECIFICATION forming part of Letters Patent No. 227,122, dated May 4,1880.

Application filed August 4, 1879. i

To all whom it may concern:

Be it known that I, THEODORE MoENKE- DICK, of Cincinnati, county ofHamilton, State of Ohio, have invented a new and useful Improvement inRocking-Chairs, of which the following is a specification.

This invention relates to that class of rocking-chairs which consist ofa rocking member which rests upon a platform, to which it is at IOtached by springs extending between the rockers and secured,respectively, to the rocking and stationary members, so as to permit arock ing motion and retain the rocking member in place upon theplatform.

The object of the invention is a jointless attaching-sprin g for thisclass of rockingchairs which will retain the chair in proper positionupon the platform, insure an easy rocking motion, and,by reason ofhaving no moving or hinged joints, be noiseless in use.

The invention consists of a double spring the opposite, members of whichare rigidly secured together near the middle, one member having itsopposite ends bent to be attached 2 5 to the rockers, the ends of theopposite mem her being bent in the opposite direction for attachment tothe base or platform.

It also consists of a means of securing the platform-spring to thestretcher, that the ends of the spring may be conveniently securedbeneath the stretcher and have ample play to insure an easy rockingmotion.

In the accompanying drawings, in which similar letters of referenceindicate identical 3 5 parts in the different figures, Figure 1 isaperspective view of a rocking-chair embodying my invention. Fig. 2 is atransverse vertical section through therockers and platform, taken infront of the spring, but showing the spring- 40 separating blocks insection. In this View, as

in Fig. 1, the springs are in the position they will occupy when therocking frame is at rest.

Fig. 3 is a view in the same plane as Fig. 2,

showing the position the spring will assume when the rocking framereaches the limit of its forward or backward motion.

A A are the rockers; B B, the feet, which,

united by stretcher C, form the platform. The

rocking frame and the platform, except the slots in each end of thestretcher, arecon- 5o structed in the usual manner.

D and E are two straps of spring metal. F F are perforated blocks ofwood, hard rubber, or other suitable material. These are placed at alittle distance apart between the springs D and E, and upon oppositesides of the springcenters the springs are firmly secured upon the endsof these blocks by bolts G G.

The ends of spring D are bent upward at a right angle and firmly securedto the inside of the rockers by two screws. The spring between the bentends is a little longer than the distance between the opposite rockers,so that when the ends are attached to the rockers, as shown in thedrawings, the spring will be a little slack.

Spring E has a double bend at each end, the first bend being at rightangles to the body of the spring, and the second or end bends parallelwith it, as seen at Figs. 1 and 2. The vertical ends of the spring areof great-er length than the thickness of stretcher C, so that when itsends are firmly secured to the under side of the stretcher by screws 0the body of the spring will be held above the top, that the ends 7 5 ofbolts G G will never touch the stretcher. The vertical ends of spring Ehave limited play in inclined slots cut centrally in the ends of thestretcher C.

It will be seen that as the chair is rocked back or forward the lowerspring will assume the position shown in Fig. 3, and by coming incontact with the inclined end of the slots, if an unusual strain isbrought upon the chair, prevent it from overturning. 8

I have shown two blocks, F F, bolted between the springs to retain themin proper position one above the other, and prevent any turning of thesprings with relation to each other.

Another advantage in this mode of construction is that the springs maybe readily separated, and the parts of the chair be taken apart forrepairs or for shipping; but the invention would not be varied bysoldering or 5 brazing the springs together in the center or unitingthem in any other well-known mode that would hold them firmly in thecenter,

while the ends are left free for attachment to the rockers and platform.

It would also be an inferior modification of my invention to omit theslots in the ends of the stretcher, make the vertical end of the springE shorter, and secure the horizontal end upon top of the stretcher. Inthis case the horizontal ends should be made longer and thefastening-screws placed nearer the center of the stretcher. A round turnupon the ends of the spring would, in this case, be preferable to theshort turn shown in the drawings.

I do not claim the combination of the straps D and E,secured,respectively, t0 the rocking and stationary member of arocking-chair with detachable center fastcnings, consisting of blocks Fand bolts G.

Having thus described my invention, what I claim is 1. In combinationwith a rocking-chair consisting of a rocking frame upon a stationaryplatform,the double spring composed of straps D and E, firmly unitedtogether near their centers, as described, the bent ends of strapl)being firmly secured to the rocking frame and the opposite bent ends ofstrap E secured to the platform, substantially as described.

2. The combination of frame A, feet B, and slotted stretcher O withsprings D and E, centrally united, as'described, the ends of said springE passing through the slots in the stretcher and secured to its underside by screws 0, substantially as specified.

THEODORE MOENKEDIOK.

Witnesses CHARLES KAIPER, GEO; J. MURRAY.

